java.lang.NullPointerException

Coderanch | mel li | 12 months ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    Start Button not working

    Coderanch | 12 months ago | mel li
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at Furutsu7.actionPerformed()
    2. Unknown
      Furutsu7.actionPerformed
      1. Furutsu7.actionPerformed(Furutsu7.java:110)
      1 frame
    3. Java RT
      EventDispatchThread.run
      1. javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
      2. javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
      3. javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
      4. javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
      5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
      6. java.awt.Component.processMouseEvent(Component.java:6525)
      7. javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
      8. java.awt.Component.processEvent(Component.java:6290)
      9. java.awt.Container.processEvent(Container.java:2234)
      10. java.awt.Component.dispatchEventImpl(Component.java:4881)
      11. java.awt.Container.dispatchEventImpl(Container.java:2292)
      12. java.awt.Component.dispatchEvent(Component.java:4703)
      13. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
      14. java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533)
      15. java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
      16. java.awt.Container.dispatchEventImpl(Container.java:2278)
      17. java.awt.Window.dispatchEventImpl(Window.java:2750)
      18. java.awt.Component.dispatchEvent(Component.java:4703)
      19. java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
      20. java.awt.EventQueue.access$500(EventQueue.java:97)
      21. java.awt.EventQueue$3.run(EventQueue.java:709)
      22. java.awt.EventQueue$3.run(EventQueue.java:703)
      23. java.security.AccessController.doPrivileged(Native Method)
      24. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
      25. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
      26. java.awt.EventQueue$4.run(EventQueue.java:731)
      27. java.awt.EventQueue$4.run(EventQueue.java:729)
      28. java.security.AccessController.doPrivileged(Native Method)
      29. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
      30. java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
      31. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
      32. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
      33. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
      34. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
      35. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
      36. java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
      36 frames